Apple paid Google ~$1B/yr to license memory for Siri. OpenAI rebuilt ChatGPT memory in place. Anthropic gave models an API to consolidate their own. All called "memory." None is what users mean. @jimbobbennett.dev wrote a field map: arize.com/blog/memory...
This week the field shipped four kinds of memory, and Apple paid Google a billion dollars a year for one of them. None of the four is what the demos imply. A field map of what's actually shipping, and the missing primitive that sits between the buckets.